Flushing system



C. A. WULF,

FLUSHING SYSTEM.

APPLICATxoN FILED nmzs, 1917.

1,346,362. v Pmtemy 13,1920.

UNITED STATES PATENT AOFFIC FLUSHING SYSTEM.

Application filed December 28, 1917.

To r/,ZZ Lu/tom t may concern:

Be it known that I, CHARLES A.. VULF, a citizen of the United States, residing at Indianapolis, in the county of Marion and `State of Indiana, have invented a new and useful Flushing System, of which the following is a specification.

My present invention relates to the type of closet-fiushing systems shown in my prior Patents No. 966,509, August 9, 1910, and No. 1,083,974, January 1s, 1914.

It is the object of my present invention to introduce certain refinements over the devices shown in such prior patents, to simplify thc construction so that the device may be put together more easily, to'obtain an easy accessibility of the parts, as for repairs, to eliminate noise, to introduce sanitary features, and to provide a simple adjustment whereby the amount of `water discharged may be readily and effectively controlled. c j j The accompanying drawing illustrates my invention. Figure 1 is a sectional view through the various valves of my improved system. showing an outlet of the associated tank; Fig. 2 is an enlarged section on the line 2-2 of Fig. 1; and Fig. 3 is a section on the line 3-3 of Fig. 1, with the flushing valve open. Y

The tank 10 is an air-tight tank.v having an inlet 11 and a larger outlet 12. In the inlet is screwed the upper threaded end 13,0f

l supply valve 14, the lower end of which` is connected by any suitable fitting 15 to the water supply source. A smaller Haring tube 16 has a screw-threaded mounting in the upper end of the threaded end 13 of the valve 14, and preferably projects up into the tank k10; and discharging upward within this smaller flaring tube 16 is an air nozzle 17 having an oblique inlet passage 18 in the inlet end of which is mounted a perforated plug 19 the inner end of which formsV a seat for Wa ball valve 20 so as to provide a check valve which permits air to pass into the nozzle 17 but prevents water from passing out through the passage 18. The nozzle 17 and passage 18 of this air injector are formed as integral parts of the casing of the valve14.

., A pipe 21 is suitably connected to the plug 19 and to a fitting 22 which is providedv with a seat 23Vfor a ball valve 24. This-ball valve acts as a check valve to permit inflow of air through a vertical air intake pipe 25, while Specification of Letters Patent.

Patented July A13, 1920.

serial No. 209.244.

preventing backward flow through such pipe. The upper end of the pipe 25 is the inlet end, and is provided with a perforated cap 26 which clamps in place a felt washer 27 which is sufliciently pervious to allow the passage of air into the pipe 25 but eliminates whistling. A removable screw plug 23 gives access to the ball valve 24, and also prevents 1t from closing the yend of the pipe 21 o r of a pipe 29 which is also connected to the titting 22. The pipe 29 communicates with a lateral openingof the discharge valve fitting 30, in which lateral opening there is a check valve 31 which permits fluid fiow from the pipe 29 into the valve fitting 30 while pre-- venting it in the opposite direction. This allows any water which may leak past the valve 20 tol pass on to the drainage connection, but prevents any air from passing from the valve fitting 30 through the pipe 29 into the pipe 21, so that whatever air passes into the pipe 21 must be through the air intake pipe 25. The seating of the valve 31 is insured by the partial vacuum produced in the pipes 21, 25, and 29 on account of the resistance offered Aby the felt 27 to the entrance of air into the pipe 25. The upper end of the valve fitting 30 is connected by a suitable let 12 and preferably projecting upward into vthe tank 10, and the lower end of such valve fitting 30 is connected to the flushing pipe 34 leading to the associated water closet bowl. In the upper end of the valve fitting 30 is formed a seat 35 for the iushing valve 36, which may be raised-from itsseat by the action of a roller 37 carried eccentrically by a crank arm 33 on the end of a rockshaft 39 mounted in a lateral extension 40 of the valve fitting 30. At its outer end, the rock shaft 39 is provided with a down-turned crank portion 41 which forms an operating handle,so that by lifting it the roller `37 is causedfto lift the valve 36. The amount of turning movement of therock4 shaft 39 is limitedby the engagement of a lateral finger 42 on such shaft and a screw 43 mounted in a lateral projection 44 from-the extension 40, the adjustment being such that the arm 38 isvallowed to goA an adjustable distance beyond dead center so that the rock'shaft 39 Y is notturned back by the weight of the operating crank 41 until enough lwater has on thelvalve 3G and thus al'low'itftoniove up slightlyso that the arm 38 may pass to allow the rock shaft 39 to return to normal position. L

In operation, the valve 14 being open,

water is discharged through the `4inlet '11' into the tank 10 to compress the air in the :upper partfthereo -untijlzthe pressure of the air balancesthe pressure of the incoming water. The flowV o'f vthe incoming water through tho ,Smaller lsrllglubs 16 sinuses .air to be drawn in through. the no/izle'1l7 to `suplply 1theloss which `.is eaused by lthe 'absorption of the airin the water, whichllossfwithout such replenishing would-eventually cause 1 the systein ltobecorne fair-bound. This air is drawn in throughthe telt275 which prevents whistling, :the pipe 25, the ttingQQ, ypast the check NalVeQlJ- and through the pipe21. and .plug A19 past thecheCkvalve20 into the pas .ssgeu'sy 18 ,loading to 'the nozzle 17. The check Valve 31 prev.entsv any air from being 4drawn in from "the discharge Avalve fitting ,30 `and-the associated closet bowl, which might be objseotonable from asanitary ystillllpoint- 'llhe felt @Tellers sonleresistanceto ,the entramos of air', so thetupon suction or" air from the .nozzle 17 le partial moulin vsproduced lin the pipes 2 1, 25, and29-; this ren- .d erscerwillV 'the -ssatng'of ,thetvslvoj31., at .this time, .to protest .the drawing lool .slr

lromthe Dire 3.4.. '-5

'T hefbell 20 seats itself .ontho inner-ond .of

'1 the plugl) whenthe inflow of waterto the fil-$0.1"

armf 38. may pass ,through Vthe" de adfgcenter holclllhsorm.38141110@ closolylto tliilssfl tank 10 \ceases,rthus preventing any of the .Aviator frnn flowing. out through vthenorzzle 17 and its connections. "However, should there be 4any leakage rpast the checky'alyeO, it is ledfto Athe' discharge vvalue`fi tti r 1g ,1f 30 whenceit passes totheicloset bowl and is :drained away, V4the Value 31 ,permitting :,this,

,.whilefthe-Nalvel `preventsthe water `trom Y passin'ginto therairintake,pipeQ f `Wthenit is desired toobtaina flushingaction', .thema-Hdl@ /ll ,is .lifted tokturn. the :rook sha'tBQ .and ,raiseV theyalve' 36, to`allo,w the .Weten 'inthe tank 1050.1@ foro ed out by the pressure ofA .the .poolotscl ar. 'llho .outlow of Walser continues inutil yths .Water :pressure .on the top' ofthe .valve 36s ',sullolerltly lowvoredto allot7 the weight. of the llsnslle softlls malts 3.6 slightly so that tho position: v.flllls amount of water discharged may thus.beadjustoflbythe.screw s3( .This

p sorow-,will beafljusteclac Pressure7A lor Liners. wat 1,0 ,under1 high y pres rduigl to `fthe erster 91';

sure than under `low pressure, sud: ,therefore to g este, :elven quim- .tityof waterLrllsshsrgethe clsohsrgslvslifs may. e .be olosedf sooner 'with @high fursssuro- ,oonssousnoethe .sorewfsiiwllbeadiustsd .Center position ol'lgh wsterfnressure than ,at louiuoloflplssllrol lrlilouol .wi/story .into

, V'larger than fof the `valve 14, assembling .o considerably faciliteted,

to ,the -tslrefl scheck t `valves permitting Y. i first ,.sgrlsl fluid voutflow j through' .the ,.SelQnd-f. c i

the `tank through theinlet 11 starts .directb7 after the outflow of water from the outlet 12 begins, but because the outlet passage is the Vinlet passage the outflow is more rapid than the inflow so that the desired'rapid flushing may be (obtained, and so that the aforesaid reduction in pressure on topof the Valve 36 'tz1kes place Eto'perrnit suclrvelve to close and stop the outilow,

the inflow continuing thereafter until the air inl the tank 10 is sufficiently compressed to balance the waterpressure. By h wing the air, injoctor formed Yasian integral part .f the doris@ is By having the valve 36 separate frolnthe arfrn and roller 37, such valve may berrhorereadily removed for inspection and repair `for it can be Vliited out o `the.diseh arge Value ittingJBOwithout hindrance'rom the ,rook shaft 39 endits associated parts. ,The,upwardprojeetion of the smaller llorrlg WbolGoQCltllottillg 33 above thebottorn otthe tank 10 prevents the settlernent of sediment in the inlet'and discharge Valves,

I ,lsm .as my `inventloll1 l- A .flushing System, comprising .anniftle'llt; tank henne s Water-.supply inlet :and a Valved discharge outlet, an air injector associated ruthv .said Water-simply inlet., .seid Asir injector .havinglestnotsd air ,inlet opening and a separate opening to thevalved ,discharge voutlet .on the dschsrgssd. ofthe valve thereof', andaicheck ualvegssoeiated discharge side: vof

secondi outflow of. llud to the valveltlsellarss out- 1st and preventing 'nllow of. :fluidi-.120m slioh Valved discharge'outlet. f

2. A ,flushing systsm,comprsrs 'sirtight tank having a water-supply zir 1let` ztnd `a valvsfl .C lsoharso outlet :an .air inisotof associated, with sadwatsr-,suprly rnlo'trseid slr injector having @an air nlstoonnooton which .is ufo-*Titled Wtha @hook ,Volvo ,permitting slr inflow to .tllslnisotor sn l l.1ss Isn .opening @atmosphere and@ sspelistsorsn- @liso/lisses outlet ,on .the the Vvolvo .-.thorsoi -and .associated 'Wthmssil Gronings :for Dermttngouly llud .uflowtluoughlths .3- ,A flushuisfsystsi, Qomprsreen aifr- .tight ,toolthsnnlgfa water-.supply inlet sod rsl1sllis 1l11rs outlet, .an sir injector .sssosiatsd .with seid, water-.supply inlet, sold .sir ,lnoot'orlllsviinslan'all* intlel -osnnsston which shrouded with" ,sho .svolte ,rermttiugeir inflow@ ths'iilisotorgsed hes sn opening lo.. o-limospllsfs ,and @seperate los. to.. droites@ 'soonest 111,; endl orion: .check .openings for 4l. A Hushing system, comprising an airtight tank having a water-supply inlet and a iushing discharge outlet, a valve controlling said outlet and forced to its seat by the pressure from the tank, said valve being separable from said tank, a 'rock shaft having a crank arm for lifting said valve from its seat, said crank arm and the movable element of the valve being separate so that after the valve is separated from the tank its movable element may be lifted out without interference from the crank arm.

5. A flushing system, comprising an airtight tank having a water-supply inlet and a flushing discharge outlet, a valve controlling said outlet and forced to its seat by the pressure from the tank, a rock shaft having a crank arm for lifting said valve from its seat, said rock shaft having a tendency t0 move to a position where it permits the valve to close, and adjustable means for limiting the valve-opening turning of said rock shaft to vary the amount said crank arm passes dead center when lifting'said valve and thereby controlling the tank water pressure at which the pressure of the valve on said crank arm permits the rock shaft t0 swing back to normal position to allow the valve to close.

6. A flushing system, comprising an airtight tank having a watensupply inlet and a flushing discharge outlet, a valve controlling said outlet and forced to its seat by the pressure from the tank, a rock shaft having a crank arm for-lifting said valve from its seat, said rock shaft being provided with an operating handle crank which by its weight tends to return the rock shaft to a position permitting the valve to close, and adjustable means for limiting the valve-opening turning of said rock shaft to vary the amount said crank arm passes dead center when lifting said valve and thereby controlling the tank water pressure at which the pressure of the valve on said crank arm permits the Weight of the handle crank to swing the rock shaft back to normal position to allow the valve to close.

In witness whereof I have hereunto set my hand at Fairmont, West Virginia, this 19th day of December, A. D. one thousand nine hundred and seventeen.

CHARLES A. WULF. 

